[sdiy] I'm an idiot, right?

[Peter Grenader]

I may not have been clear (not the first time, I know)

I understand that in most instances, the supply taps of CMOS read as VDD (+
end of supply) and Vss (ground).

the 4050 however has it supply pins labeled Vcc and Vss.

I am assuming then that Vss is ground and Vss is + voltage.

yes??

(I have it the other way around currently and it ain't workin' !)



Peter Grenader wrote:

> 
> 
> Peoples,
> 
> happy Fourth of Jul...whoops...THANKSGIVNG to you all.
> 
> CMOS reality check:
> 
> VSS= +3 thru 15; VCC=ground
> 
> right?
> 
> On a 4050B, pin 1 sis Vcc and should be ground, pin 8 is Vss and should be
> +12 volts, right?  this should work, right?
> 
> I got confused with Vcc (which pin 1 is marked and was thinking TTL, and
> reversed the power and ground.  I've tried 4 chips, perfectly acceptable
> fluxuating signal is going into the buffers, all outputs on all buffers stay
> high, regardless of input condition.
> 
> So, before I re-wire all the supply and ground lines (there are four of
> these buffers in the circuit Im making), i just wanted to check...
> 
> i had it reversed, right?
> 
> HEEEEEEEELP.
> 
> Peter
> 
> 
> 
> 
>